:root {
  /* Nether theme palette */
  --nether-bg-primary: #1a0f08;
  --nether-bg-secondary: #2a1810;
  --nether-surface: #342318;
  --nether-surface-hover: #3e2a1d;
  --nether-border: #4a3222;
  --nether-border-subtle: #3a2718;
  --nether-text-primary: #f5e6d3;
  --nether-text-secondary: #d4bfa8;
  --nether-text-tertiary: #a58969;
  --nether-accent: #e8924d;
  --nether-accent-hover: #f5a563;
  --nether-danger: #c74742;

  /* Trial Chambers theme palette */
  --trial-bg-primary: #0f1415;
  --trial-bg-secondary: #1a2224;
  --trial-surface: #1f2a2d;
  --trial-surface-hover: #283437;
  --trial-border: #354245;
  --trial-border-subtle: #2a3538;
  --trial-text-primary: #e8ebe6;
  --trial-text-secondary: #bac5c1;
  --trial-text-tertiary: #7d9390;
  --trial-accent: #6fb8a3;
  --trial-accent-hover: #83c7b4;
  --trial-danger: #b86866;

  /* Semantic tokens — default to nether, overridden by body.trial-theme */
  --bg-primary: var(--nether-bg-primary);
  --bg-secondary: var(--nether-bg-secondary);
  --surface: var(--nether-surface);
  --surface-hover: var(--nether-surface-hover);
  --border: var(--nether-border);
  --border-subtle: var(--nether-border-subtle);
  --text-primary: var(--nether-text-primary);
  --text-secondary: var(--nether-text-secondary);
  --text-tertiary: var(--nether-text-tertiary);
  --accent: var(--nether-accent);
  --accent-hover: var(--nether-accent-hover);
  --danger: var(--nether-danger);
  --accent-rgb: 232, 146, 77;
  --danger-rgb: 199, 71, 66;
  --danger-text: #f5a09d;
  /* fortress legend icon differs per dimension (nether=danger red, trial=info blue) */
  --fortress-icon-color: var(--nether-danger);
  --overlay-bg: rgba(26, 15, 8, 0.96);
  --overlay-bg-92: rgba(26, 15, 8, 0.92);

  /* Semantic colors (non-themed) */
  --success: #5fb878;
  --warning: #d9a74a;
  --info: #5b9dd9;

  /* Spacing scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 0.75rem;
  --space-lg: 1rem;
  --space-xl: 1.5rem;
  --space-2xl: 2rem;

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 10px;
  --radius-xl: 12px;
  --radius-full: 9999px;

  /* Typography */
  --font-display: "Chakra Petch", system-ui, sans-serif;
  --font-sans: "Manrope", system-ui, sans-serif;
  --font-mono: "Fira Code", "SF Mono", Monaco, monospace;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.16);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.25);
}

/* Theme override — only variables, no component rules */
body.trial-theme {
  --bg-primary: var(--trial-bg-primary);
  --bg-secondary: var(--trial-bg-secondary);
  --surface: var(--trial-surface);
  --surface-hover: var(--trial-surface-hover);
  --border: var(--trial-border);
  --border-subtle: var(--trial-border-subtle);
  --text-primary: var(--trial-text-primary);
  --text-secondary: var(--trial-text-secondary);
  --text-tertiary: var(--trial-text-tertiary);
  --accent: var(--trial-accent);
  --accent-hover: var(--trial-accent-hover);
  --danger: var(--trial-danger);
  --accent-rgb: 111, 184, 163;
  --danger-rgb: 184, 104, 102;
  --danger-text: #f5a8a6;
  --fortress-icon-color: var(--info);
  --overlay-bg: rgba(15, 20, 21, 0.96);
  --overlay-bg-92: rgba(15, 20, 21, 0.92);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(12px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@keyframes tooltipIn {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes ctxIn {
  from { opacity: 0; transform: scale(0.96) translateY(-4px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* Typography */
h1 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

h2 {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-md);
}

h3 {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-md);
}

.muted {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.small-note {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

/* Form elements */
input,
select,
textarea {
  width: 100%;
  padding: 0.5rem 0.625rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.875rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  outline: none;
}

input:hover,
select:hover {
  border-color: var(--border);
}

input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.12);
}

input[type="checkbox"] {
  width: auto;
  cursor: pointer;
  accent-color: var(--accent);
}

/* Buttons */
button {
  padding: 0.5rem 0.875rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  outline: none;
}

button:hover:not(:disabled) {
  background: var(--surface-hover);
  border-color: var(--accent);
  transform: translateY(-1px);
}

button:active:not(:disabled) {
  transform: translateY(0);
}

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

button.ghost-btn {
  background: transparent;
  border-style: dashed;
  border-color: var(--border-subtle);
  font-weight: 400;
}
.icon-btn {
  width: 34px;
  min-width: 34px;
  height: 34px;
  padding: 0;
  display: inline-grid;
  place-items: center;
  font-size: 16px;
}

.delete-btn {
  background: rgba(var(--danger-rgb), 0.1);
  border-color: var(--danger);
  color: var(--danger-text);
}

.delete-btn:hover:not(:disabled) {
  background: rgba(var(--danger-rgb), 0.22);
  border-color: var(--danger);
  box-shadow: 0 0 12px rgba(var(--danger-rgb), 0.15);
}

/* Labels */
label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

label > input,
label > select {
  margin-top: var(--space-xs);
}

/* Forms */
form {
  display: grid;
  gap: var(--space-md);
}

/* Login page */
.login-body {
  display: grid;
  place-items: center;
  padding: var(--space-xl);
  background: radial-gradient(ellipse at top, rgba(var(--accent-rgb), 0.08), transparent 60%),
              var(--bg-primary);
}

.login-card {
  width: min(420px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-xl);
  animation: scaleIn 0.3s ease;
}

.login-card h1 {
  margin-bottom: var(--space-sm);
}

.error-text {
  color: #f5a09d;
  font-size: 0.875rem;
  min-height: 1.25rem;
}

/* App shell */
.app-shell {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  position: relative;
  width: 340px;
  flex-shrink: 0;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  transition: width 0.25s ease;
}

.sidebar.collapsed {
  width: 0;
  min-width: 0;
  overflow: hidden;
  border-right: none;
}

.sidebar::-webkit-scrollbar {
  width: 6px;
}

.sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: var(--radius-full);
}

.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-lg) var(--space-md);
  border-bottom: 1px solid var(--border-subtle);
}

.sidebar-head h1 {
  flex: 1;
}

.sidebar-head button {
  flex-shrink: 0;
  padding: 0;
  font-size: 1rem;
}

.panel {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-subtle);
}

.panel:last-child {
  border-bottom: none;
}

/* Mode buttons */
.mode-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.mode-btn {
  padding: 0.5rem 0.375rem;
  font-size: 0.8125rem;
  font-family: var(--font-display);
  font-weight: 500;
  text-align: center;
  letter-spacing: 0.02em;
  transition: all 0.2s ease;
}

.mode-btn.active {
  background: rgba(var(--accent-rgb), 0.15);
  border-color: var(--accent);
  color: var(--accent-hover);
  box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.15), 0 0 16px rgba(var(--accent-rgb), 0.08);
}

/* Coordinate grid */
.coord-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

/* Button rows */
.btn-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

/* Inline toggle */
.inline-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  cursor: pointer;
  user-select: none;
}

/* List controls */
.list-controls {
  display: grid;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.batch-row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.marker-summary {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  margin-bottom: var(--space-sm);
  font-size: 0.8125rem;
}

#selected-count-text {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

/* Stat cards */
.stat-cards {
  display: flex;
  gap: 6px;
  margin-bottom: var(--space-md);
}

.stat-card {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 6px 8px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: border-color 0.2s ease;
}

.stat-card:hover {
  border-color: var(--border);
}

.stat-n {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
}

.stat-l {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Resize handle */
.resize-handle {
  position: absolute;
  top: 0;
  right: -3px;
  bottom: 0;
  width: 6px;
  cursor: col-resize;
  z-index: 10;
  transition: opacity 0.15s ease;
}

.resize-handle:hover,
.resize-handle.dragging {
  background: var(--accent);
  opacity: 0.4;
}

/* Marker list */
.marker-list {
  list-style: none;
  display: grid;
  gap: var(--space-sm);
  max-height: 400px;
  overflow-y: auto;
  padding-right: var(--space-xs);
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.marker-list::-webkit-scrollbar {
  width: 6px;
}

.marker-list::-webkit-scrollbar-track {
  background: transparent;
}

.marker-list::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: var(--radius-full);
}

.marker-item {
  padding: var(--space-md);
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s ease;
}

.marker-item:hover {
  border-color: var(--border);
  background: var(--surface-hover);
}

.marker-item.selected {
  border-color: var(--accent);
  background: rgba(var(--accent-rgb), 0.08);
  box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.15), 0 0 12px rgba(var(--accent-rgb), 0.06);
}

.marker-title-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xs);
}

.marker-color-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.marker-title-row strong {
  flex: 1;
  font-size: 0.875rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.marker-meta {
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  font-variant-ligatures: none;
  color: var(--text-tertiary);
  line-height: 1.4;
}

.marker-note {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.3;
  margin-top: 2px;
}

.marker-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
}

.marker-actions button {
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
}

/* Legend */
.legend-list {
  list-style: none;
  display: grid;
  gap: var(--space-sm);
  font-size: 0.875rem;
}

.legend-icon {
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-right: var(--space-sm);
  vertical-align: middle;
  border: 1px solid currentColor;
}

.legend-icon.bastion {
  background: var(--accent);
  border-color: var(--accent);
  transform: rotate(45deg);
}

.legend-icon.fortress {
  position: relative;
  background: transparent;
  border: none;
}

.legend-icon.fortress::before,
.legend-icon.fortress::after {
  content: "";
  position: absolute;
  background: var(--fortress-icon-color);
}

.legend-icon.fortress::before {
  width: 12px;
  height: 2px;
  top: 5px;
  left: 0;
}

.legend-icon.fortress::after {
  width: 2px;
  height: 12px;
  top: 0;
  left: 5px;
}

.legend-icon.path {
  width: 16px;
  height: 2px;
  border: none;
  background: var(--text-primary);
}

.legend-icon.warm {
  background: rgba(var(--accent-rgb), 0.2);
  border-color: rgba(var(--accent-rgb), 0.4);
}

.legend-icon.excluded {
  background: rgba(var(--danger-rgb), 0.25);
  border-color: rgba(var(--danger-rgb), 0.5);
  border-style: dashed;
}

/* Canvas area */
.canvas-wrap {
  flex: 1;
  display: grid;
  grid-template-rows: auto 1fr auto;
  position: relative;
  overflow: hidden;
}

.topbar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-lg);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

#logout-btn {
  margin-left: auto;
}

.status-pill {
  padding: 0.2rem 0.625rem;
  font-family: var(--font-mono);
  font-variant-ligatures: none;
  font-size: 0.6875rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  border: 1px solid;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.status-pill.connected {
  background: rgba(95, 184, 120, 0.12);
  border-color: var(--success);
  color: #a8eec0;
}

.status-pill.connecting {
  background: rgba(217, 167, 74, 0.12);
  border-color: var(--warning);
  color: #f5d89a;
}

.status-pill.offline {
  background: rgba(var(--danger-rgb), 0.12);
  border-color: var(--danger);
  color: var(--danger-text);
}

#selection-readout {
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  font-variant-ligatures: none;
  color: var(--text-tertiary);
}

#map-canvas {
  width: 100%;
  height: 100%;
  display: block;
  background: var(--bg-secondary);
  cursor: crosshair;
}

.coords-pill {
  position: absolute;
  bottom: 56px;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.3rem 0.75rem;
  background: var(--overlay-bg-92);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-variant-ligatures: none;
  color: var(--text-secondary);
  pointer-events: none;
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-md);
}

.bottom-hud {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-sm) var(--space-lg);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-variant-ligatures: none;
  color: var(--text-tertiary);
}

/* Tooltip */
.tooltip {
  position: absolute;
  padding: 0;
  background: var(--overlay-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  pointer-events: none;
  z-index: 100;
  max-width: 260px;
  overflow: hidden;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-xl);
  animation: tooltipIn 0.1s ease;
}

.tooltip::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--accent);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}
.tooltip[data-type="fortress"]::before { background: var(--fortress-icon-color); }
.tooltip[data-type="path"]::before { background: var(--info); }

.tt-body {
  padding: 8px 12px 8px 14px;
}

.tt-type {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-family: var(--font-display);
  line-height: 1.2;
}
.tooltip[data-type="fortress"] .tt-type { color: var(--fortress-icon-color); }
.tooltip[data-type="path"] .tt-type { color: var(--info); }

.tt-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 2px;
  line-height: 1.3;
  word-break: break-word;
}

.tt-coords {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  margin-top: 5px;
  letter-spacing: -0.01em;
}

.tt-author {
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  margin-top: 2px;
}

.tt-note {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-style: italic;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid var(--border-subtle);
  line-height: 1.4;
  word-break: break-word;
}

/* Toast */
.toast {
  position: absolute;
  left: 50%;
  bottom: 64px;
  transform: translateX(-50%);
  z-index: 200;
  max-width: min(480px, 90vw);
  padding: var(--space-md) var(--space-lg);
  background: var(--overlay-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  color: var(--text-primary);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-xl);
  animation: toastIn 0.25s ease;
}

.toast.error {
  border-color: var(--danger);
  background: rgba(var(--danger-rgb), 0.12);
}

/* Context menu */
#list-context-menu {
  position: fixed;
  z-index: 1100;
}

.context-menu {
  position: fixed;
  z-index: 1100;
  min-width: 192px;
  padding: 5px;
  background: var(--overlay-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-xl), inset 0 1px 0 rgba(255,255,255,0.04);
  animation: ctxIn 0.1s ease;
}

.context-menu button {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px var(--space-md);
  text-align: left;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  color: var(--text-primary);
  cursor: pointer;
  position: relative;
  transition: background 0.1s, color 0.1s;
}

.context-menu button::before {
  content: '';
  position: absolute;
  left: 0;
  top: 18%;
  height: 64%;
  width: 2px;
  border-radius: 2px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.1s, transform 0.1s;
  transform: scaleY(0.3);
}

.context-menu button:hover {
  background: rgba(var(--accent-rgb), 0.08);
  color: var(--text-primary);
  transform: none;
}

.context-menu button:hover::before {
  opacity: 1;
  transform: scaleY(1);
}

.context-menu button.delete-btn:hover {
  background: rgba(var(--danger-rgb), 0.12);
  color: var(--danger-text);
}

.context-menu button.delete-btn::before {
  background: var(--danger);
}

.ctx-icon {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  flex-shrink: 0;
  width: 14px;
  text-align: center;
  transition: color 0.1s;
}

.context-menu button:hover .ctx-icon { color: var(--accent); }
.context-menu button.delete-btn:hover .ctx-icon { color: var(--danger-text); }

.ctx-header {
  padding: var(--space-xs) var(--space-md) var(--space-xs) 14px;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 230px;
  font-family: var(--font-display);
}

.ctx-separator {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: 3px 0;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: grid;
  place-items: center;
  padding: var(--space-xl);
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  animation: fadeIn 0.15s ease;
}

.modal-card {
  width: min(480px, 100%);
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-2xl);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  animation: scaleIn 0.2s ease;
}

.modal-card:not(.confirm-card) > button[type="button"]:last-child {
  margin-top: var(--space-xl);
  width: 100%;
}

.confirm-card {
  width: min(340px, 90%);
  text-align: center;
}

.confirm-card p {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 0;
}

.confirm-card .btn-row {
  justify-content: center;
  gap: var(--space-md);
}

.confirm-card .btn-row button {
  flex: 1;
}

/* Edit modal extras */
.accent-btn {
  background: rgba(var(--accent-rgb), 0.15);
  border-color: var(--accent);
  color: var(--accent);
}

.accent-btn:hover:not(:disabled) {
  background: rgba(var(--accent-rgb), 0.28);
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(var(--accent-rgb), 0.18);
}

.type-radio-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.type-radio-label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.type-radio-options {
  display: flex;
  gap: var(--space-md);
}

.radio-option {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.875rem;
  color: var(--text-primary);
  cursor: pointer;
  font-weight: 500;
  margin-bottom: 0;
}

.radio-option input[type="radio"] {
  accent-color: var(--accent);
  width: 15px;
  height: 15px;
  cursor: pointer;
}

/* Utilities */
.hidden {
  display: none !important;
}

/* Responsive */
@media (max-width: 1100px) {
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(340px, 85vw);
    z-index: 1000;
    transition: width 0.25s ease;
    box-shadow: var(--shadow-xl);
  }

  #logout-btn {
    margin-left: 0;
  }

  .topbar {
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  html,
  body {
    font-size: 13px;
  }

  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    width: min(100vw, 340px);
  }

  .mode-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .btn-row {
    grid-template-columns: 1fr;
  }

  .coord-grid {
    grid-template-columns: 1fr;
  }
}